Padlock.



J. E. VEIGA.

PADLOCK.

APPLICATION FILED DEC. 17. I914.

Patented May 4, 1915.

To all whom it may-concern Unirrnl'n srarns PATENT carton JOSEPH. E. VEIGA, OF LOWELL, MASSACHUSETTS.

PADLOCK.

-Be it known that I, JosnrrrE. VEIGA, a citizen of the United states residing at Lowell, in, the county of Middlesex and State of Massachusetts, have invented cere tain new and useful Improvements .in Padlocks, of whichthe following is a specification, referencebeing had to the accompany-v ing drawings.

This'invention relates .to improvements in a locks and more particularly to a lock of that type commonly known as Padlocks, the invention having for its primary object to provide simple and novel means for locking the shackle in closed position, the modes opemnid'i .of which cannot be easily detected.

The invention has for a further. object to generally improve the construction of locks of the above character so that the same is strong and durable and not liable to get out of order.

\Vilih the above and other objects in view, my invention consists in the novel features of-construction, combination, and arrange ment of parts to be hereinafter more fully described, claimed, and illustrated in the accompanying drawing, in which,

Figure 1 is a. perspective view of a padlock embodying the present invention showing the key arranged therein; Fig. 2 is an elevation, the face plate of the lock case being removed; Fig. 3 is a section taken on the line 33 of Fig. 2; Fig. 4. is a section taken on the line 4- 4 of Fig. 3, the rotatable member being shown in dotted lines in 'position to engage'and release the locking dog; Fig. 5 is a perspective view of the rotatable key actuated member; and Fig. 6 is a similar view of the locking dog. i

Referring in detail to the drawing, designates the body of the lock case which may be of any approved form, said body being open upon one side and upon said open side the face plate 6 is secured upon the body of the case by means of a plurality of pins or studs 7. At one eornerof the case body, the

same is/cut away to accommodate the sleeve or knuckle 9 formed upon one end of a-sub,-.

the face plate (3. Upon the knuckle 9 of the shackle. an inwardly extending lug. or finger 11 is {armed The free ,end of a'leaf spring 12 is disposed between this finger and the, v

' Specification of Letters Patent.

contiguous marginal wall of the case body Patented May a, 1915. Application filed December 17, 1914. Serial No. 877,736.

and normally acts to exert an inward pressure against said finger, thereby tending to force the shackle to its open position. The other end of the leaf spring is provided with a cup or sleeve indicated at 13 through which one of the fastening pins or studs 7 extends. A key post ll is also fixed at one of its ends in the body wall of the lock case, and is of such length that the outer end thereof extends within the enlarged end of a horizontally disposed key opening or slot 15 formed in the face plate 6. Upon the pin 14, a rotatable disk 16 is loosely disposed. said. disk having a central opening to receive said pin and being provided with a peripheral flange 17. A coil spring 18 is arranged upon the pin '14 between said rotatable disk and the opposed body'wall of the case 5. The disk is further provided with spaced diverging webs 19 which extend inwardly from the marginal flange 17 thereof and are provided in their outer longitudinal edges with notches 20 for a purpose which will be later explained. The disk 16 at the juncture of the peripheral flange 17 therewith is formed with an opening 21. i

A locking dog 22 is pivotally mounted upon I body and the other end of said spring hear-- ing against a laterally projecting lug 25 formed upon one end of said dog. This spring normally acts to hold the log 25 of the dog in engagement with a notch or recess '26 formed in the free end of the shackle member 8 which is adapted tobe projected inwardly through an opening in one of the marginal walls of the case body. This free end of the shackle has a beveled end face 27 which is adapted to engage the lug 25 of the dog and-move said dog against the ac- .tion of the spring 24:, when the shackle is forced intothe lock case. The other endof the locking dog 22 is also provided with an I angular projection 28 which is disposed at one side of the rotatable disk 16. At the juncture of this extension with the body of the locking dog, a lug 29 is formed, with which said disk is adapted to cooperate to move the dog to its release position, in the manner hereinafter explained The key indicated at 30 is provided with theusual bit 31 on one of its ends, and the inner edge of this lug is notched or recessed as at 32. The shank of the key has a tubular end portion to receive the outer' end of the -pin 14. When the key is inserted through the key opening 15 in the face plat'eb and engaged upon the pin 14, the bit 81 is disposjed between the webs 19 on the disk 16, and the notch 32 in said key bit is in coinciding relation with the notches 20 in the T edgesofsaid web. Upon the inner face of the plate 6, a guard 33 is formed. This guard prevents the actuation of the rotatable disk 16 by a key, the bit of which is not provided with a properly located notch in its inner edge, as will be readily understood.

In the operation of my improved look, assuming that the shackle is in its locked position, as shown in Fig. 2, when it is desired to release the shackle so that the same may move to its open position, the key is inserted through the key opening 15 in the face plate and engaged between the webs 19 on the roj tatable disk, as above explained. It will be noted thatthe opening 21 in this disk is dis posed at adistance of ninety degrees from the webs 19. The operator turns the key downwardly toward the left, as indicated by the arrow in Fig. 1 and makes a three-quarter turn of the rotatable disk, at which point the webs 19 willbe disposed above the key opening while the opening 21 in the disk will be disposed directly opposite tothe'lug 29 on the locking dog. The key is now forced inwardly against the. action of the spring.

18 so that said lug 29 will project into the opening 21 of the disk. A. further turning movement of this disktoward'the left will.

rock the locking dog upon the pivot stud-23 so that the upper end thereof will move inwardly against the action of the holding spring and out of engagement with the free end of the shackle. The leaf spring 11 then acts against the inwardly projecting finger 10 on the pivoted end of the shackle to force said shackle to its open position. In the usual padlock, the key,-after being inserted, is turned upwardly to the right while in the present invention, the direct opposite of this operation is required in order to open the look. A person, not familiar with the secret of operation, could not readily detect the point at which the key is to be forced inwardly.

in orderto engage the rotatable element with the lockingdog and, owing to the relative positions of this element and said dog, it is essential that the turning movement be to-' ward the left, as above explained, and not in the usual direction, or toward the right.

mechanism of which comprises very few eleand durable. The lock can also be manufactured at relatively small cost and provides efiicient means whereby the opening of a door or other part held by said look, by unauthorized parties, is practically rendered impossible.

\Vhile I have shown and described a par ticular construction of the shackle member and mounting of the same within the lock case, it will be apparent that this portion of the invention, as well as the several other parts thereof may be greatly modified in form, proportion, and arrangement, and I, therefore, reserve the privilege of resorting to all such legitimate changes as may be fairly embodied within the spirit and scope of the invention as claimed.

Having thus fully described my invention, what I desire to claim and secure by Letters Patent is-: Y a 1. In a lock, a case, a shackle pivoted at oneend in the case and adapted to be pro jected at its opposite end into said case, a locking dog to coiiperate with said shackle and hold the same incl'osed position, and a releasing member mounted in said case for rotatable and axial movement whereby the same may be co iperatively engaged with jected'intothe case at its opposite end, a

pivoted locking dog mounted in the case to engage the latter end of the shackle and hold the same in closed position, and a key actuated element rotatably and axially movable within said case whereby the same may be cooperatively engaged with said dog to actuate the same and release the shackle.

In a look, a case, a shackle pivoted at one end in said case and adapted to have its.other end projected into the case, a piy oted spring pressed locking dog mounted in the case to cotiperate with the latter end of the shackle and hold the same in closed position, and a key actuated rotatably and axially movable element provided with means whereby the same is coiiperatively engaged with said dogat the end of its axial movement in one direction to actuate the dog and release the shackle.

l. In a look, a case, a shackle pivoted at one end in said case and adapted to have its other end projected into the case, a spring press'ed looking dog pivotally mounted in the case to cooperate withv said shackle and lock the same in closed. position, a sprin pressed 'key actuated element rotatably an axially movable in the case and normally held out of engagement with the locking dog, saidelement being providedwith means to cooperatively engage said dog at the end I i 1,1se,sae g of its axial movement in one direction whereby the dog is actuated upon a rotaion of said element to release the shackle.

5. In a look, a case, a shackle pivoted at one of its ends in said case and adapted to .have its other endprojected into the case, a pivoted spring pressed locking dog mounted in the case, one end of said dog engaging the shackle to hold the same in closed position, the other end of said dog having a lug formed thereon, a rotatably and axially movable disk mounted in the case, a spring yieldingly holding said disk against axial movement and in engagement'with one of the case walls, said disk being provided with key engaging. means and also having an opening therein to receive the In on the locking dog when the disk is force inwardly against the action of said spring whereby said disk is actuated to release the shackle.

6. In a look, a case, a shackle adapted to project at one of its ends into the case, a locking dog to coiiperate with saidshackle and hold the same in closed position, and a releasing member mounted in said case for rotatable and rectilinear movement to engage and actuate said dog and release the shackle. 7. In a look, a case, a locking element movably mounted in the case, a dog to cooperate with said element and hold the same in looking position, and a releasing element mounted in the case for rectilinear movement to dispose the same with relation to the dog, whereby the latter is actuated upon a subsequent rotary movement oi said member to release the locking element.

of the key to engage said member with the locking dog, said member being then rotated by a turning movement of the key to subsequently actuate the dog and release the shackle.

9. In a-lock, a case, a shackle adapted to project at one of its ends into the case, a

movable locking dog to cooperate with said shackle and hold the same in closed position, a key actuated releasing member mounted in said case for rectilinear and rotary movement, and a key to cooperate with said member and first rotate the same to 1 dispose said member in position to be effectively engaged with the dog, said member then being moved rectilinearly by an inward pressure upon the key to engage the same with the dog, and said member being finally rotated bya turning movement of thekey to actuate the dog and release the shackle.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

JOSEPH E. VEIGA;

Witnesses:

' MANUEL E. MELLO,

Fnmorssrmo O. SILVA. 

